The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 13, 2019
Filed:
Oct. 21, 2014
Robert Bosch Gmbh, Stuttgart, DE;
Michael Ungermann, Linsengericht, DE;
Daniel Zirkel, Wiernsheim-Serres, DE;
Mario Beyer, Markgroeningen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention provides a method, an apparatus and a systemfor operating a rotating electric machine. The method has the following steps: defining (S) a rotor position angle reference value of a rotor of the rotating electric machine (REM); determining (S) a first rotor position angle measured value of the rotor during operation in the case of essentially a first speed of the rotor by means of a rotor position detection device (REE) of the rotating electric machine (REM); determining (S) a second rotor position angle measured value of the rotor during operation in the case of essentially a second speed of the rotor by means of the rotor position detection device (REE) of the rotating electric machine (REM), wherein the second speed of the rotor differs from the first speed of the rotor; defining (S) a first angular offset as the difference between the first rotor position angle measured value and the rotor position angle reference value; defining (S) a second angular offset as the difference between the second rotor position angle measured value and the rotor position angle reference value; and calculating (S) a signal delay of the rotor position detection device (REE) on the basis of the defined first angular offset, the defined second angular offset, the first speed of the rotor and the second speed of the rotor.